Endress+Hauser Turbimax CUS51D - Calibration

Turbimax CUS51D Operation
Endress+Hauser 29
0
10
20 30 40 50 60
80
90 10070
g/l
E
D
C
B
A
A0050652
 28 Solid application type
A Digested sludge
B Excess sludge
C Sludge, general (mainly for SBR applications)
D Activated sludge (only for TS ranges > 2 g/l)
E Thin sludge
The Thin sludge application enables measurements in any sludge applications from
0 to 5 g/l (0 to 0.04 lb/gal). Measurements in numerous sludge applications from
0 to 50 g/l (0 to ⁰.⁴⁄ lb/ga) (e.g. SBR) are possible with the Sludge, general application.
These applications can be calibrated at a single point in the process during operation.
Fields of use and associated applications →  29
NOTICE
Multiple scattering in the following applications: formazine, kaolin and thin sludge
If the specific operational range is exceeded, the measured value displayed by the sensor
can decrease despite increasing turbidity or increasing TS content. The indicated
operational range is reduced in the case of highly absorbing (e.g. dark) media.
‣
In the case of highly absorbing (e.g. dark) media, determine the operational range
experimentally beforehand.
8.1.2 Calibration
The sensor is precalibrated on leaving the factory. As such, it can be used in a wide range
of applications (e.g. clear water measurement) without any further calibration. The factory
calibrations are based on a three-point calibration in each case. The Formazine
application is already fully calibrated and can be used without any further calibration.
All other applications are precalibrated with reference samples and require calibration to
the corresponding application.
In addition to the factory calibration data, which cannot be modified, the sensor has five
other data records to be used for storing process calibrations.
Application selection
‣
During initial commissioning or calibration at the transmitter, select the appropriate
application for your field of application and measuring range.
Application: Wastewater
Field of application Range Application Recommended type of
calibration
Inlet < 5 g/l Thin sludge [mg/l, g/l]
Formazine
[FNU, NTU]
Single-point (in the
process)
> 5 g/l Excess sludge [g/l, %TS] Two-point (outside the
process)